Analysis

  • max time kernel
    47s
  • max time network
    52s
  • platform
    windows7_x64
  • resource
    win7-20220901-en
  • resource tags

    arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
  • submitted
    23-11-2022 10:19

General

  • Target

    951c39b25cc0f4975556b60b893da281202d6677dc6f4364cac75540e0661787.exe

  • Size

    603KB

  • MD5

    57a83a112249dec1c2e692f05099b93d

  • SHA1

    d84460e1aaac1fb59fed5a35a5fbc96917a627e1

  • SHA256

    951c39b25cc0f4975556b60b893da281202d6677dc6f4364cac75540e0661787

  • SHA512

    886953ec52d82f89b92f4f2aaf3799c49b27a59383363658dbafd80b09f4549ce81a425c8f35836e14457445109a7f6db6de53ec7feee096085fe3c3ed13a12d

  • SSDEEP

    12288:yIny5DYTfIdfFxVKyLoQ8DxH77k4D5b0mBd6/CqMHiPkZqzANv:0UTfadNLorJXkI7M/a42v

Score
8/10

Malware Config

Signatures

  • Drops file in Drivers directory 1 IoCs
  • Executes dropped EXE 5 IoCs
  • Loads dropped DLL 13 IoCs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Drops file in System32 directory 5 IoCs
  • Drops file in Program Files directory 3 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Runs net.exe
  • Suspicious behavior: LoadsDriver 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 50 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\951c39b25cc0f4975556b60b893da281202d6677dc6f4364cac75540e0661787.exe
    "C:\Users\Admin\AppData\Local\Temp\951c39b25cc0f4975556b60b893da281202d6677dc6f4364cac75540e0661787.exe"
    1⤵
    • Drops file in Drivers directory
    • Loads dropped DLL
    • Drops file in System32 directory
    • Drops file in Program Files directory
    • Suspicious use of WriteProcessMemory
    PID:960
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1376
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:1676
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:564
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:592
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:432
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:360
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:1544
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:1944
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:660
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:968
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:1796
          • C:\Windows\SysWOW64\nethtsrv.exe
            C:\Windows\SysWOW64\nethtsrv.exe
            1⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Suspicious use of AdjustPrivilegeToken
            PID:1044
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:1856

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            00e145c80a19cf1c93bdba68241a6b1e

            SHA1

            cfc9555a2a9e129bb7a574a10ad0425ccc37532f

            SHA256

            0be9e219a45682f3f04cdf0849335644ef1bf2d262281d03ef2bd32c3b4224d0

            SHA512

            58bf3dd94021ac70ec60108ba46251e45d39b4489f535714d9b103a6e437c043658790bcf8e9630101a42d7eb4ee284db8f978657f37873d55490d3d16f685f5

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            665306d11de49333ddfe976d8a4f8e00

            SHA1

            760a81b55b424ee3ce964e265bec111e1aac6537

            SHA256

            f48ebfa500927eb00a90fac50f8163bfc6ea935a26a61580d08e916943473ba2

            SHA512

            da83a4b2fcdcc5fdf7b86affdd14c519b11cdef69b10bd7bd4a14ad17d665c7cfce19405c698b73677affc1ae1e0ccbc449ae3a0def49d0a83f0ed0eac9d70f8

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            7484ac47de86d6201032f577fc9f64f1

            SHA1

            0b9a1ec8219ad7a30dafaabfadd01cd7f5eafb26

            SHA256

            515f44808f1102ca0e21b766362d06526e37e21fa7f16d6ed67d5b8f5210dadf

            SHA512

            e00d24a8639df068f0ab0ac8625e047cee21d3a17c6fba44bf3febd16e9d0f384a98cfaa2a6dabb211d0f1ebe5797439a1035f9832d91f958731a81facb90b05

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            1d9e9d09919df65f5e0533c96d8dde50

            SHA1

            80d8f81ae78d0cf7672abab9c7c61aae89b1b4ca

            SHA256

            d5a9b1de8be0d62da0b563658999508e4b68dcb84acce82aedab05e4e9efeeac

            SHA512

            e49cefe6cf76e09ba87c14565f43b922db784915ce7bda2f3f17b5f457658c781f406030eb46e5308941be40847a84195bfa03d558f63bcae907bf561d6535da

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            1d9e9d09919df65f5e0533c96d8dde50

            SHA1

            80d8f81ae78d0cf7672abab9c7c61aae89b1b4ca

            SHA256

            d5a9b1de8be0d62da0b563658999508e4b68dcb84acce82aedab05e4e9efeeac

            SHA512

            e49cefe6cf76e09ba87c14565f43b922db784915ce7bda2f3f17b5f457658c781f406030eb46e5308941be40847a84195bfa03d558f63bcae907bf561d6535da

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            7ab5f572344f2cae8a8b41e3e141ad0a

            SHA1

            1b1a663e3ff547947abf96c09cc0205f2d42a180

            SHA256

            666d0b63fe47f2db30c5df4523a2c50469a626181c7b4c7714b2481d47e98db3

            SHA512

            0eaa322d50c87958f281def330b2fb79c03a3648f1a3c8d8653f728e668e0b8a85899a08615c27e5c60928914b44f62873d7860d47297f6ce375672724d17ac6

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            7ab5f572344f2cae8a8b41e3e141ad0a

            SHA1

            1b1a663e3ff547947abf96c09cc0205f2d42a180

            SHA256

            666d0b63fe47f2db30c5df4523a2c50469a626181c7b4c7714b2481d47e98db3

            SHA512

            0eaa322d50c87958f281def330b2fb79c03a3648f1a3c8d8653f728e668e0b8a85899a08615c27e5c60928914b44f62873d7860d47297f6ce375672724d17ac6

          • \Users\Admin\AppData\Local\Temp\nsoFD46.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • \Users\Admin\AppData\Local\Temp\nsoFD46.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsoFD46.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsoFD46.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsoFD46.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            00e145c80a19cf1c93bdba68241a6b1e

            SHA1

            cfc9555a2a9e129bb7a574a10ad0425ccc37532f

            SHA256

            0be9e219a45682f3f04cdf0849335644ef1bf2d262281d03ef2bd32c3b4224d0

            SHA512

            58bf3dd94021ac70ec60108ba46251e45d39b4489f535714d9b103a6e437c043658790bcf8e9630101a42d7eb4ee284db8f978657f37873d55490d3d16f685f5

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            00e145c80a19cf1c93bdba68241a6b1e

            SHA1

            cfc9555a2a9e129bb7a574a10ad0425ccc37532f

            SHA256

            0be9e219a45682f3f04cdf0849335644ef1bf2d262281d03ef2bd32c3b4224d0

            SHA512

            58bf3dd94021ac70ec60108ba46251e45d39b4489f535714d9b103a6e437c043658790bcf8e9630101a42d7eb4ee284db8f978657f37873d55490d3d16f685f5

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            00e145c80a19cf1c93bdba68241a6b1e

            SHA1

            cfc9555a2a9e129bb7a574a10ad0425ccc37532f

            SHA256

            0be9e219a45682f3f04cdf0849335644ef1bf2d262281d03ef2bd32c3b4224d0

            SHA512

            58bf3dd94021ac70ec60108ba46251e45d39b4489f535714d9b103a6e437c043658790bcf8e9630101a42d7eb4ee284db8f978657f37873d55490d3d16f685f5

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            665306d11de49333ddfe976d8a4f8e00

            SHA1

            760a81b55b424ee3ce964e265bec111e1aac6537

            SHA256

            f48ebfa500927eb00a90fac50f8163bfc6ea935a26a61580d08e916943473ba2

            SHA512

            da83a4b2fcdcc5fdf7b86affdd14c519b11cdef69b10bd7bd4a14ad17d665c7cfce19405c698b73677affc1ae1e0ccbc449ae3a0def49d0a83f0ed0eac9d70f8

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            665306d11de49333ddfe976d8a4f8e00

            SHA1

            760a81b55b424ee3ce964e265bec111e1aac6537

            SHA256

            f48ebfa500927eb00a90fac50f8163bfc6ea935a26a61580d08e916943473ba2

            SHA512

            da83a4b2fcdcc5fdf7b86affdd14c519b11cdef69b10bd7bd4a14ad17d665c7cfce19405c698b73677affc1ae1e0ccbc449ae3a0def49d0a83f0ed0eac9d70f8

          • \Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            7484ac47de86d6201032f577fc9f64f1

            SHA1

            0b9a1ec8219ad7a30dafaabfadd01cd7f5eafb26

            SHA256

            515f44808f1102ca0e21b766362d06526e37e21fa7f16d6ed67d5b8f5210dadf

            SHA512

            e00d24a8639df068f0ab0ac8625e047cee21d3a17c6fba44bf3febd16e9d0f384a98cfaa2a6dabb211d0f1ebe5797439a1035f9832d91f958731a81facb90b05

          • \Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            1d9e9d09919df65f5e0533c96d8dde50

            SHA1

            80d8f81ae78d0cf7672abab9c7c61aae89b1b4ca

            SHA256

            d5a9b1de8be0d62da0b563658999508e4b68dcb84acce82aedab05e4e9efeeac

            SHA512

            e49cefe6cf76e09ba87c14565f43b922db784915ce7bda2f3f17b5f457658c781f406030eb46e5308941be40847a84195bfa03d558f63bcae907bf561d6535da

          • \Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            7ab5f572344f2cae8a8b41e3e141ad0a

            SHA1

            1b1a663e3ff547947abf96c09cc0205f2d42a180

            SHA256

            666d0b63fe47f2db30c5df4523a2c50469a626181c7b4c7714b2481d47e98db3

            SHA512

            0eaa322d50c87958f281def330b2fb79c03a3648f1a3c8d8653f728e668e0b8a85899a08615c27e5c60928914b44f62873d7860d47297f6ce375672724d17ac6

          • memory/360-70-0x0000000000000000-mapping.dmp

          • memory/432-64-0x0000000000000000-mapping.dmp

          • memory/564-60-0x0000000000000000-mapping.dmp

          • memory/592-61-0x0000000000000000-mapping.dmp

          • memory/660-81-0x0000000000000000-mapping.dmp

          • memory/960-62-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/960-54-0x00000000757A1000-0x00000000757A3000-memory.dmp

            Filesize

            8KB

          • memory/960-90-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/968-86-0x0000000000000000-mapping.dmp

          • memory/1376-57-0x0000000000000000-mapping.dmp

          • memory/1544-76-0x0000000000000000-mapping.dmp

          • memory/1676-58-0x0000000000000000-mapping.dmp

          • memory/1796-87-0x0000000000000000-mapping.dmp

          • memory/1944-80-0x0000000000000000-mapping.dmp